In my office building we have a cafeteria that is run by another company. There is this one Mexican woman who has just the most pleasant demeanor, every day. She greets everyone with a smile and a "how are you today, my friend?". But, she also will frequently sing! Since she's worked with us, the rest of the crew all seem happier. And I'm certain she's uplifted us patrons with her friendliness and her beautiful singing, even if we don't understand the words. Well, I at least always step lighter after refilling my coffee.
Sometimes we forget how we have such an influence on those around us. As surely as a person such as our cafeteria songbird can lighten the hearts of all those around her, a person exuding negativity ("bad vibes") can bring the hearts of those around down.
When people say "we are all connected", this is the sort of thing that is meant, though many believe it means much more. These are the sorts of "subtle energies" some people speak of... the influence one person's demeanor can have on another, either naturally or purposefully.
Today, will you choose to lighten the hearts of those around you? Or will you choose to darken them?